import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by Sun on 2015/9/28.
 */
public class TestLinkMap
{
    public static void main(String[] args)
    {
        LinkedHashMap<String,String> resultList = new LinkedHashMap<String,String>();;
        resultList.put("1","A");
        resultList.put("2","B");
        resultList.put("3","C");
        resultList.put("4","D");

        for(Iterator iter = resultList.keySet().iterator(); iter.hasNext(); )
        {
            Object key = iter.next();
            System.out.println(key);
        }



    }
}
